Effects of surface roughness on local friction and temperature distributions in a steel-on-steel fretting contact

Qin, W. and Jin, X. and Kirk, A. and Shipway, P.H. and Sun, Wei (2018) Effects of surface roughness on local friction and temperature distributions in a steel-on-steel fretting contact. Tribology International, 120 . pp. 350-357. ISSN 1879-2464

[img] PDF - Repository staff only until 10 January 2019. - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under Licence Creative Commons Attribution Non-commercial No Derivatives.
Download (1MB)

Abstract

It has generally been assumed that initial surface roughness has significant influences on local frictional shear stresses and flash temperatures in fretting contacts. However, since these hypotheses are difficult to directly measure, the frictional shear stress and temperature rise distributions in a steel-on-steel fretting contact are investigated by finite element method. The rough contacting surfaces were modelled as fractal surfaces by the Weierstrass-Mandelbrot function. The simulation results show that the frictional shear stress distribution resulted from the rough contact model is discrete, and the local stresses are highly concentrated which result in higher peak temperature rise than that from the smooth contact model. The influences of the plasticity of materials, load and frequency on the temperature rise are also discussed.

Item Type: Article
Keywords: Surface roughness; Friction; Temperature; Fretting contact
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Identification Number: https://doi.org/10.1016/j.triboint.2018.01.016
Depositing User: Sun, Wei
Date Deposited: 15 Jan 2018 10:52
Last Modified: 27 Jun 2018 10:02
URI: http://eprints.nottingham.ac.uk/id/eprint/49083

Actions (Archive Staff Only)

Edit View Edit View